Any Shure models. I had been using a SE-115 for the longest time, and I am a frequent flyer. I just bought the SE-215 ($99), and it is easily twice as comfortable and fits flush in your ear, which makes it possible to sleep with them in on a plane/train. The isolation is amazing too. They rival my custom fit in-ear aviation headset that cost 10x as much. Guitar Center is running a $20 off a $99 purchase now, which makes these even more affordable

The key to good isolation is foam tips. Many IEMs geared towards the general consumer market only have silicone tips, which (n my experience) are useless. They fall out if you even think about moving your head, and they don't isolate well.

Any Shure models. I had been using a SE-115 for the longest time, and I am a frequent flyer. I just bought the SE-215 ($99), and it is easily twice as comfortable and fits flush in your ear, which makes it possible to sleep with them in on a plane/train. The isolation is amazing too. They rival my custom fit in-ear aviation headset that cost 10x as much. Guitar Center is running a $20 off a $99 purchase now, which makes these even more affordable
The key to good isolation is foam tips. Many IEMs geared towards the general consumer market only have silicone tips, which (n my experience) are useless. They fall out if you even think about moving your head, and they don't isolate well.

he said ON ear, not IN ear.

I've not heard a bad thing about the HD-25s, they are the default go to cans for portable isolation in my circle of friends.

I just saw the isolation part. You're probably not going to get ANY kind of decent isolation in that price range with a lightweight on-ear unless it clamps the heck out of your head. I suggest either in ear or a full-sized can. That's the only way to go for traveling/commuting.

Plus, those Senns are going to be at the top of your price level.Edited by CirrusPilot - 12/27/12 at 9:18pm